Television receiving device



Nov. 17, 1931. G. H. MORSE TELEVISION RECEIVING DEVICE Filed May 22, 1930 IN VEN TOR. 650/? a: bi Mafia:

4 BY 464, W W

A TTORNEY S.

Patented Nov. 17, 1931 UNITED STATES GEORGE E. MORSE", OF 'HARRISBURG, PENNSYLVANIA TELEVISION RECEIVING DEVICE Application filed May 22,

10 supported for movement that the openings are moved past the focal plane in space in two directions, at a speed such that all of the openings will pass the plane in both directions during the period of persistence of 5 vision.

One of the primary objects of the present invention is the provision ofa mechanism adapted to replace the disks or drums above mentioned, mounted to support and move the openings as above mentioned, and particularly designed for supporting lenses through which the real image of a television receiver light may be cast upon the focal plane in space.

With this and other objects in view the invention consists in the construction and novel combination of parts fully described hereinafter, illustrated in the accompanying drawings, and pointed out in the claims appended hereto, it being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims, may be resorted to without departing from the spirit of the invention.

In the drawings forming a part hereof Fig. 1 is a side elevation of the improved mechanism, with parts in section.

Fig. 2 is a reduced partial plan view.

Fig. 3 is a perspective view of one of the lenses.

Fig. 4; is a side elevation and plan view of another embodiment of the invention.

Fig. 5 is a side view of the improved device as it is used. p 7 i The improved mechanism forming the subject matter of the present invention consists essentially of an endless chain, supported by wheels interconnected with the chain; where the chain passes around the wheels, to con- 1930. Serial no. 454,609.

strain the chain to travel with the wheels. The links are provided with openings, and a lens is seated in each opening. i

In the embodiment shownin'Fig. 1, the mechanism has in addition to the lens carrying links, sets of lateral links, which provide the connection with the sprocket wheel, and for convenience the mechanism will be described as composed of three chains, namely, the central lens supporting chain, and the lateral sprocket engagement chains. The three sets of links constitute in effect three integrated parallel chains, the lateral chains being composed of relatively narrow and relatively short links, while the central chain is composed of relatively long and relatively wide links.

Referring to Figs. 1 and 2, it will be seen that the links 1 of the central chain are relatively wide, and relatively long, and each has an opening 2, in which is arranged a lens 3 to be described. The lateralchains are similar, or symmetrical, each consisting of pairs 4 and 5 of links. The members of the pairs 4 are pivotally connected at their ends to the adjacent ends of adjacent members of the pairs 5, the ends of the links 4 being inserted between the ends of the links 5, as shown in Fig. 2. The links are pivotally connected by pins 6, which engage the ends of the links, as shown in Fig. 1, and spacers 7' are arranged between the ends of the links 4, to space them apart, to provide openings for the teeth 8' of the sprocket wheels 9, which support the chains.

Referring to Fig. 1, it will be seen that the links 1 are supported at a higher level than the links 4L and 5. That/is, the links 1 are above the plane of the upper edges of the links 1 and 5. Each link 1 has at each end a pair of perforated ears 10, which engage thepivots 6. and the perforations 11 of the ears, as shown in Fig. 1, are oval or oblong, so that some lost motion is permitted between the links 1. and between the links 1 and the pivot pins 6. Each of the links 1 is provided at one end on its outer face with a. rabbet 12, and at the other end with a lip 13, adapted to fit within the rabbet12, as shown, whereby to provide Cil a light seal between the adjacent side edges of the adjacent links. The pivot pins 6 are of a length to extend from one lateral chain to another, that is, each pin 6 connects the lateral chains at both sides, and pivotally connects registering links of both lateral chains. It will be noticed, referring to Fig. 2, that each link 1 is substantially the width of two pairs of links 4 and 5. That is, the links 1 are twice as wide as the length of a link l, it being understood that the links 4 and 5 are of the same length.

The lenses 3, which are car 'ied in the openings 2 of the links 1, are preferably cut square, rather than circular, as in the usual construction, and they are double convex lenses, of short focus.

Referring to Fig. 2, it will be seen that the openings 2 for the lenses are displaced slightly laterally with respect to each other, each succeeding opening being a little to the right of the preceding opening, and the lenses, of course, are similarly spaced. The lenses are spaced such that the lateral pitch distance between the first and the last lenses of the chain is the samev as the longitudinal pitch dimension, and they are displaced uniformly.

The st motion connection between the links 1, and between the said links and the links l5, enables any two adjacent links 1 to be displaced slightly with reference to each other. This arrangement is necessary because the longer central links 10 will tend to span a chord of the sprocket wheels which will, of course, be shorter than the circumferential position taken by the sprocket hearing links. While I have shown an arrangement in which there are two sprocket links for every lens link, it is apparent that the arrangement is not essential, as three or more sprocket links may be used in connection with each lens link.

Two sprocket wheels 9 are provided at each end of the chain, that is, the chain is supported by four wheels, arranged in two pairs. Each pair is secured to a shaft 15, suitably supported, and one of the shafts is driven, to move the lens carrier. As shown in Fig. 5, a source of light 16, preferably a neon lamp, whose fluctuations in brilliancy are affected by an incoming television electric current, is arranged between the shafts and between the runs of the chain, in position such that the light can pass through the openings of the chain, as they move past the light. Magnifying or projecting lenses 18 are arranged to receive the rays passing through the lenses.

Whether or not a magnifying or a projecting lens is used, depends upon whether the reflection of the light 17 is to be viewed directly or to be thrown upon a screen. Prismatic lenses 19 are arranged in front of the lenses 18. The prismatic lenses are designed to bring the images, seen by the two eyes, to-

gether, so that they will coalesce and become one to perception. The sprockets are rotated at a rate such that the chain makes one complete trip over them every fifteenth of a second, or in proper synchronism with the apparatus at the television sending station. There are forty-eighth lenses, and with these conditions, forty-eight vertical and parallel bands of light of equal length will be observed by looking through the lens 18.

In Fig. 4, another embodiment of the invention is shown. In this construction, the carrier is composed of pivotally connected links 20, which have openings 21, for the lenses 22, the openings being arranged in the same manner as thoseof the Fig. 1 construction. The links 20 are pivotally connected by pivot pins 23, and it will be noticed, referring to Fig. 1, that the said pins extend beyond the ends of the links. The links 20 may have the same lip and rabbet engagement as the Fig. 1 construction, and the chain is supported by pairs of sprocket wheels 25, which are mounted on shafts 26, the wheels being arranged in pairs in the same manner as in Fig. 1. Each wheel has notches 27 in its periphery, arranged at spaced intervals, and adapted to be engaged by the projecting ends of the pivot pins 23. The lenses 22 are like that shown in Fig. 3, and the operation is the same.

In both constructions, the carrier is composed of links carrying lenses, the side chains and the pins providing merely a means to connect the chains to the sprockets.

What is claimed as new is 1. In television receiving apparatus, a light distributing mechanism, comprising an endless chain composed of similar pivotally connected links, each link having a member provided with an opening, said openings extending spirally of the chain face.

2. In television receiving apparatus, a light distributing mechanism, comprising an endless chain, composed of similar links pivotally connected, each link having a member provided with an opening, and a lens in each opening, said openings ext-ending spirally of the chain face, and the lenses being of equal focal length.

3. In television 'receiving apparatus, a light distributing mechanism, comprising an endless chain, composed of similar links pivotally connected, each link having a member provided with an opening, and a lens in each opening, said openings extending spirally of the chain face, and the lenses being of equal focal strength, pairs of sprocket wheels for supporting the chain, the members of the pairs being spaced to register with opposite side edges'of the chain, and said chain and wheels having interengaging mechanism for constraining the chain to move with the wheels.

4. In television receiving apparatus, a

I ll.)

light distributing mechanism, comprising an endless chain, composed of similar links pivotally connected, each link having an opening, and a lens in each opening, said openings extending spirally of the chain face, and the lenses being of equal focal length, pairs of sprocket wheels for supporting the chain, the members of the pairs being spaced to register with opposite side edges of the chain, and said chain and wheels having interengaging mechanism for constraining the chain to move with the wheels, said links having their adj acent edges rabbeted, and the rabbeted edges of each link fitting within the rabbeted edges of the adjacent links.

5. In television receiving apparatus, a light distributing mechanism comprising an endless chain composed of similar pivotally connected links, each link having a member provided with an opening, said openings extending spirally of the chain face, said members having their adjacent edges rabbeted, and the rabbeted edges of each member fitting within the rabbeted edges of the adjacent members.

6. In television receiving apparatus, a light distributing mechanism comprising an endless chain composed of similar pivotally connected links, each link having a member provided with an opening, said openings extending spirally of the chain face, said members having their adjacent edges rabbeted, and the rabbeted edges of each member fitting within the rabbeted edges of the adjacent members, and means for supporting the chain with a plurality of members moving in the same plane past a source of light affected by an incoming television current.

7. In television receiving apparatus, a light distributing mechanism comprising an endless chain composed of similar pivotally connected links, each link having an opening, said openings extending spirallv of the chain face, said links having their adjacent edges rabbeted. and the rabbeted edges of each link fitting within the rabbeted edges of the adjacent links, and means for supporting the chain with a plurality of links moving in the same plane past a source of light affected by an incoming television current, and magnifying lenses for viewing the image transmitted bv the lenses on a focal plane in space.

8. In television receiving apparatus, a light distributing mechanism comprising an endless chain composed of similar pivotally connected links, each link having an opening, said openings extending spirally of the chain face, said links having their adjacent edges rabbeted. and the rabbeted edges of each link fitting within the rabbeted edges of the adj acent links, and means for supporting the chain with a plurality of links moving in the same plane past a source of light affected by an incoming television current, magnifying lenses for viewmg the image transmitted by V the lenses on a focal plane in space, and a pair of rismatic lenses for combining the images. igned at Harrisburg, in the county of Dauphin and State of Pennsylvania, this 19th day of May, A. D. 1930.

GEORGE H. MORSE. 

